Units in frequency spectrum plot

[moorepants]

v^2/Hz should be m^2s^-2/Hz. I don't think v (as units) is defined anywhere.

[moorepants]

Ah, this is still odd.

It should be:

m^2 s^{-2} Hz^{-1}

or

\frac{m^2}{s^2 Hz}

or a one liner with \.

[tvdbogert]

It was correct but just looked odd with the mix of exponent and slash notation.

I think I would prefer the notation m^2 s^{-2} Hz^{-1}

Which is technically the same as m^2 s^{-1} but that would make it more confusing.

The results are a power spectral density, produced with Matlab's "spectrogram" function Power is the square of the velocity signal, so m^2/s^2. Then density makes this power per Hz, i.e. m^2/s^2/Hz